Oiling device for pile wires



NOV. 25 1924' W. W. ROBERTSON OILING DEVICE FOR FILE WIRES Filed Sept. 22. 1922 WILLIAM W. ROBERTSON, 0F WORCESTER, IWASSAGI-IUSETTS. ASSIGNOR TO CROMPTON & KNOW/TILES LGOIVI WORKS, A. CORPORATION OF MASSACHUSETTS.

OILI'NG DEVICE FOR. FILE WIRES.

Application filed September 22, 1922.

To all whom it may concern:

Be it known that I, WVILLIAM W. ROBERT- SON, a citizen of the Dominion of Canada, residing at Worcester, in the county of lVorcester and State of Massachusetts, have invented a new and useful Oiling Device for Pile "Wires, of which the following is a specifioation.

This invention relates to looms of the type in which the fabric is woven over pile wires which are thereafter successively withdrawn as the operation of the loom continues. In wide looms there is considerable resistance to the removal of the pile wires and provision has been heretofore made for lubricating the wires to reduce the friction of the warp during withdrawal.

It is the object of my present invention to improve the construction of such oiling devices, particularly by providing a plurality of oiling members and also by providing means by which one of said members may be removed from operative position as the head of the pile wire is drawn past the oiling device.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawings, in which Fig. 1 is a front elevation of a portion of a loom embodying my improvements;

Fig. 2 is a plan view thereof;

Fig. 3 is a front elevation of the movable oiling member; and

Fig. 4 is a sectional elevation taken along the line 4t4; of Fig. 3.

Referring to the drawings, I have shown parts of a carpet loom including a plurality of pile wires 10, a wire carriage 11 mounted to slide on a guide 12, and a rope 13 passing around a guide pulley 1A and secured to a lug or projection 15 on the carriage 11. A sprocket chain 16 is continuously driven by mechanism not shown and is provided with a projection 17 which periodically engages a latch 18 on the carriage 11. The carriage is advanced to engage a pile wire by the rope 13, suitably actuated by gravity or by a spring attached thereto, and the carriage is thereafter positively withdrawn by the continuously driven chain 16. A hook 19 (Fig. 2) is pivotally mounted on the carriage 11 and engages the Serial No. 589,937.

foremost pile wire 10 at each reciprocation of the carriage.

The parts thus far described are of the usual form and constitute no part of my present invention, which relates specifically to improved devices for oiling the pile wires 10. For this purpose I provlde a lower oiling roll or brush 20 and an upper oiling roll or brush 21. The lower roll 20 is rotatable upon a fixed aXis and is preferably rotated by a cross belt 22 upon a pulley 23 secured to the guide pulley 14: previously described. As the carriage 11 is withdrawn or moved to the right in Fig. 1, the rope 115 will be drawn over the pulley 14:, rotating the pulley and thus in turn rotating the oil ing roll 20 in contact with the wire 10 as the latter is withdrawn from the fabric.

The upper oiling roll 21 is pivotally mounted at the end of a lever 24 which in turn is pivoted at 25 on the carriage 11. Shoulders 26 on the hub of the lever 24 engage a stop pin 27 (Fig. 1) and thus limit movement of the lever in both directions. A spring 28 is connected to the upper portion of the lever and normally holds the roll 21 depressed to engage a pile wire. WVhen in this position the surfaces of the rolls 2h and 21 are more or less in contact and the roll 21 is rotated by engagement with the driven roll 20.

A suitable lubricant may be supplied to the oiling rolls in any convenient manner and I have indicated herein a construction by which a candle 30 may be caused to engage the upper roll 21. For this purpose the candle is clamped in an arm 31 pivoted at 32 to a bracket 33 on the lever 24. The parts are so disposed angularly that the candle will be lightly pressed by gravity against the rotating surface of the roll 21. Any other suitable or convenient means of supplying lubricant to the rolls may be sub stituted for that herein shown.

Each pile wire 10 has an attached head 10 of considerable thickness and I have found it desirable to withdraw the roll 21 from operative position until the head 10 has passed the oiling device. For this purpose 1 provide the lever 2 1 with a cam arm 35 positioned for engagement by a roll 36 on the carriage 11, as the latter advances to wire-engaging position. Such engagement causes the arm 35 to move from the dotted to the full line position in Fig. 1, raising the roll 21 from the position shown in Fig. 3 to that shown in Fig. 1 and permitting the head 10 to pass freely under the roll 21.

The arm35 is of such length that the roll 21 will immediately engage the wire 10 as soon as the head 1O has passed beyond the oiling rolls. By thus withdrawing the roll 21 from operative position, excessive wear upon the roll is avoided and also the waste of lubricant, which would perform no useful function if applied to the head 10 Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed otherwise than as set fortl'i in the claims but what I claim is 1. In a loom, a pile wire oiling device comprising two separable oiling members, one of said members being rotatable with its peripheral surface in engagement with the pile wire and the other member engaging theoppositeside. of said pile wire and means to periodically move one of said members to avoid engagement thereof with the head of the pile Wire.

2. In a loom, a pile wire oiling device comprising an oiling member mounted in fixed position, a second oiling member mounted for movement toward and from said first member, and means to move said second member at predetermined points in the operation of the loom.

3. In a loom, a pile wire oiling device comprising a lower oiling roll rotatably mounted in fixed position means to drive said roll, an upper oiling roll mounted for movement toward and from said lower roll, and means to thus move said upper roll at predetermined. points inthe operation of the 4-. In a loom, a pile wire oiling device' comprising a lower oiling roll rotatably mounted in: fixed position, means to drive said roll, an upper oiling roll mounted for movementtoward and from said, lower roll, and means to thus move said upper roll at predete mined points in the operation of the loom, said upper roll being; normally rotated by contact with said lowerroll.

In testimony whereof I have hereuntosffixed my signature.

WILLIAM W; ROBERTSON. 

